Buy Mountain Equipment Lumin Jacket - Men's Cobalt/Russet Zips, L Mountain Equipment made the Men's Lumin Down Jacket lightweight and rugged for alpinists, climbers, and ski tourers. High-quality duck down ensures warmth-without-weight, and Mountain Equipment treated it with a Bluesign-approved Teflon treatment for water-resistant protection that helps it dry faster and retain warmth in moisture-filled conditions. The Helium 30 shell is ultra-compressible for easy packing and downproof so you never feel a feather. The Lumin also features an adjustable helmet-compatible hood, Lycra-bound cuffs, and an adjustable hem to further seal out cold drafts.